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Theses

Les outils d’évaluation du risque de TMS : caractéristiques, cas d’usage et perspectives de développement

Abstract : The evolution of the prevention model for Musculoskeletal Disorders (MSD), together with the development of new technologies leads to the evolution of these tools. Our thesis work on the design of a digital MSD risk assessment tool is in this context. It aims to establish benchmarks for the design of future MSD risk’ assessment tools. The etiological models of MSDs have evolved in recent years towards more multifactoriality. For their part, MSD risk assessment tools seem to remain largely focused on an assessment of exposure to physical risk factors. The notion of instruments and that of instrumented action considers that the user of a tool rarely stays within the strict framework of the use intended by the designers. Our thesis work is structured around four studies. A first study offers a detailed analysis of 20 existing risk assessment tools for MSDs and the risk factors considered. In general, these results confirm the difficulty of these tools in grasping the multifactorial nature of the exhibitions. It therefore appears necessary to enrich these tools by considering a larger number of factors, as well as their interactions. A second study presents an analysis of the use of a MSD risk assessment tool by three different users on an industrial site. The MSD risk assessment tool used during the analysis offers a multifactorial look at the risk of MSD. Analysis of the use of MSD risk assessment tools in 29 work situations allowed us to establish design benchmarks for future MSD risk’ assessment tools. The results of this study allow us to establish that the MSD risk assessment mobilizes a set of tools beyond the only assessment tool for its realization. The third and fourth studies question the question of how the stages of MSD risk assessment interact with other enterprise instrument systems. We notably carried out the analysis of a restitution meeting of the result of an MSD risk assessment (study 3), and interviews with other industrial groups (study 4) to consolidate our data. The set of tools mobilized by the actors during the MSD risk assessment constitutes a system of instrument. This instrument system allows the user of the tool to take a first look at the operator's activity in the evaluated work situation. We will discuss the confusion caused by these practices between MSD risk assessment and ergonomic work analysis by asking the question of the impact of this confusion on MSD prevention.
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Rémy Hubaut. Les outils d’évaluation du risque de TMS : caractéristiques, cas d’usage et perspectives de développement. Psychologie. Université Grenoble Alpes [2020-..], 2020. Français. ⟨NNT : 2020GRALH016⟩. ⟨tel-03193924⟩

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